An Exo-Jupiter candidate in the eclipsing binary FL Lyr

Kozyreva, V. S.; Bogomazov, A. I.; Demkov, B. P.; Zotov, Leonid; Тутуков, А. В.

doi:10.1134/s1063772915110050

Cited by 7 publications

(20 citation statements)

References 32 publications

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“…We also show a Lomb-Scargle periodogram 11 of our measurements. The solutions from Kozyreva et al (2015) would produce a non-linear trend in the ETVs, which we don't see. In the periodogram, however, we note a group of peaks, with the strongest one at P = 103.2 d. Our ETVs phase-folded with this period are also shown.…”

Section: Kic 09641031 (Fl Lyr)mentioning

confidence: 99%

“…Our value of r 2 = 0.0995 ± 0.0027 is therefore well within their error. Finally, we examine the claim of Kozyreva et al (2015) of detectable timing variations, which they interpret as being caused by a third body on a long-period orbit. In the Figure 5 we present our own ETVs (τ), calculated in a way described in Sect.…”

Section: Kic 09641031 (Fl Lyr)mentioning

confidence: 99%

“…The most complete analysis so far was done by Popper et al (1986), who give 1.218(16) M ⊙ , 1.283(30) R ⊙ for the primary, and 0.958(11) M ⊙ , 0.963(30) R ⊙ for the secondary. Recently, Kozyreva et al (2015) presented their own ETVs and claimed a discovery of a planetary-mass circumbinary companion candidate. They gave three possible solutions, based on different orbital periods of the inner binary and the outer body.…”

Section: Targetsmentioning

confidence: 99%

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HIDES spectroscopy of bright detached eclipsing binaries from the Kepler field – II. Double- and triple-lined objects

Hełminiak

Ukita

Kambe

et al. 2017

Monthly Notices of the Royal Astronomical Society

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We present the results of our spectroscopic observations of eight detached eclipsing binaries (DEBs), selected from the Kepler Eclipsing Binary Catalog. Radial velocities (RVs) were calculated from high resolution spectra obtained with the HIDES spectrograph, attached to the 1.88-m telescope of the Okayama Astrophysical Observatory, and were used to characterize the targets in combination with the Kepler light curves. For each binary we obtained a full set of orbital and physical parameters, reaching precision below 3% in masses and radii for 5 pairs. By comparing our results with theoretical models, we assess the distance, age and evolutionary status of the researched objects. We also study eclipse timing variations of selected objects, and identify a new system with a γDor pulsator. Two systems are triples, and show lines coming from three components. In one case the motion of the outer star and the perturbation in the RVs of the inner binary are clearly visible and periodical, which allows us to directly calculate the mass of the third star, and inclination of the outer orbit. In the second case we only see a clear motion of the tertiary, and investigate two scenarios: that it is a linear trend coming from the orbital motion around the inner binary, and that it is caused by a planetary mass companion. When possible, we also compare our results with the literature, and conclude that only by combining photometry with RVs it is possible to obtain correct physical parameters of both components of a DEB.

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Section: Kic 09641031 (Fl Lyr)mentioning

confidence: 99%

Section: Kic 09641031 (Fl Lyr)mentioning

confidence: 99%

Section: Targetsmentioning

confidence: 99%

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HIDES spectroscopy of bright detached eclipsing binaries from the Kepler field – II. Double- and triple-lined objects

Hełminiak

Ukita

Kambe

et al. 2017

Monthly Notices of the Royal Astronomical Society

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“…В работе [1] приведен список известных двойных затменнопеременных звезд, вокруг которых с большой вероятностью вращается планета. Исходя из этого списка была проведена работа [2] по поиску третьего тела в системе FL Lyr.…”

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“…Наша программа позволила получить независимый результат, в точности соответствующий результатам, полученным авторами в статье [2].…”

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Search for Third Body in Double-Star Systems Timing by the Example Fl Lyr

Kryukova¹,

Назаров²,

Observatory³

2020

Proceedings of the 48-Th International Student's Conferences "Physics of Space"

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государственный университет науки и технологий имени академика М. Ф. Решетнева 2 Крымская астрофизическая обсерватория Работа посвящена написанию и тестированию программного кода на платформе MatLab для поиска третьего тела в системах затменно-переменных звезд и нахождения его периода обращения. Для системы FL Lyr программа позволила получить независимый результат, в точности соответствующий предшествующим определениям.

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